Stewart، RW؛ Barker، AR؛ Shochet، RB؛ Wright، SM (2007). "The new and improved learning community at Johns Hopkins University School of Medicine resembles that at Hogwarts School of Witchcraft and Wizardry". Medical teacher. ج. 29 ع. 4: 353–7. DOI:10.1080/01421590701477423. PMID:17786750.
Stewart، RW؛ Barker، AR؛ Shochet، RB؛ Wright، SM (2007). "The new and improved learning community at Johns Hopkins University School of Medicine resembles that at Hogwarts School of Witchcraft and Wizardry". Medical teacher. ج. 29 ع. 4: 353–7. DOI:10.1080/01421590701477423. PMID:17786750.